/* ================================================
   Документы — стили страницы (светлая тема)
   ================================================ */

/* ─── HERO ─── */
section.hero {
  position: relative;
  padding: 72px 0;
  background: linear-gradient(180deg, var(--bg2), var(--bg));
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 20px;
}
.hero-inner h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -.04em;
  color: var(--ink);
  margin-bottom: 20px;
}
.hero-inner h1 span { color: var(--blue); }
.hero-desc {
  font-size: 16px;
  color: var(--ink2);
  line-height: 1.75;
  max-width: 580px;
}

/* ─── НАВИГАЦИЯ-ЯКОРЯ ─── */
.doc-nav {
  background: var(--white);
  border-bottom: 2px solid var(--blue);
  position: sticky;
  top: 78px; /* высота header */
  z-index: 90;
  box-shadow: 0 2px 8px rgba(30,34,51,.06);
}
.doc-nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.doc-nav-inner::-webkit-scrollbar { display: none; }
.doc-nav a {
  color: var(--ink2);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 16px 22px;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color .15s, border-color .15s;
}
.doc-nav a:hover,
.doc-nav a.active {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

/* ─── ОБЩИЕ СЕКЦИИ ─── */
section.cert-section,
section.normativ-section,
section.drawings-section,
section.materials-section { padding: 80px 0; }
section.normativ-section { background: var(--bg2); border-top: 1px solid var(--line); }
section.drawings-section { border-top: 1px solid var(--line); }
section.materials-section { background: var(--bg2); border-top: 1px solid var(--line); }

.section-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}
.section-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-tag::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--orange);
}
.section-inner > h2,
.cert-section h2,
.normativ-section h2,
.drawings-section h2,
.materials-section h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 2.8vw, 36px);
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--ink);
  margin-bottom: 32px;
}

/* ─── СЕРТИФИКАТ ─── */
.cert-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  align-items: start;
}
.cert-img-wrap {
  position: relative;
  cursor: zoom-in;
}
.cert-img-wrap img {
  width: 100%;
  display: block;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(30,34,51,.1);
  transition: transform .2s;
}
.cert-img-wrap:hover img { transform: scale(1.02); }
.cert-zoom {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(30,34,51,.75);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  padding: 5px 10px;
  border-radius: 4px;
  backdrop-filter: blur(4px);
  pointer-events: none;
}
.cert-info h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 14px;
}
.cert-info p {
  font-size: 15px;
  color: var(--ink2);
  line-height: 1.75;
  margin-bottom: 14px;
}
.warning-box {
  margin-top: 24px;
  border-left: 3px solid var(--orange);
  background: #fff4ed;
  padding: 20px 24px;
  border-radius: 0 8px 8px 0;
}
.warning-box .w-title {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--orange2);
  margin-bottom: 10px;
}
.warning-box p {
  font-size: 14px;
  color: #7c3b0a;
  line-height: 1.65;
  margin: 0;
}

/* ─── НОРМАТИВНАЯ БАЗА ─── */
.norm-docs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 40px;
}
.norm-doc-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color .15s, transform .15s;
}
.norm-doc-card:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
}
.norm-doc-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink3);
}
.norm-doc-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.4;
}
.norm-doc-desc {
  font-size: 13px;
  color: var(--ink2);
  line-height: 1.6;
  flex: 1;
}
.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 11px 18px;
  border-radius: 6px;
  align-self: flex-start;
  transition: background .15s;
}
.btn-download:hover { background: var(--blue2); }
.btn-download svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2.5;
}

/* ─── ВЫДЕРЖКА ИЗ НОРМАТИВА ─── */
.excerpt-block {
  background: var(--ink);
  color: #fff;
  padding: 40px;
  border-radius: 12px;
  margin-top: 8px;
}
.excerpt-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 24px;
}
.excerpt-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.excerpt-item {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 8px;
  padding: 20px;
}
.excerpt-num {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 900;
  color: var(--orange);
  margin-bottom: 6px;
}
.excerpt-label {
  font-size: 12px;
  color: rgba(255,255,255,.5);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 8px;
  font-family: var(--font-mono);
}
.excerpt-text {
  font-size: 14px;
  color: rgba(255,255,255,.8);
  line-height: 1.6;
}

/* ─── СРАВНИТЕЛЬНАЯ ТАБЛИЦА ───
   Таблица выводится внутри .excerpt-block (тёмный фон), поэтому
   даём ей собственную светлую подложку — иначе текст нечитаем. */
.compare-table-wrap {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: #fff;
}
.compare-table th {
  background: var(--blue);
  color: #fff;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  padding: 14px 18px;
  text-align: left;
  letter-spacing: .04em;
}
.compare-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  color: var(--ink2);
  vertical-align: top;
  background: #fff;
}
.compare-table tr:nth-child(even) td { background: var(--bg2); }
.compare-table td:first-child { font-weight: 600; color: var(--ink); }
.compare-table td:last-child { color: var(--orange); font-weight: 600; font-family: var(--font-mono); }

/* ─── ЧЕРТЕЖИ ─── */
.drawings-note {
  font-size: 15px;
  color: var(--ink2);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 680px;
}
.drawings-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.drawing-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  cursor: zoom-in;
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.drawing-card:hover {
  border-color: var(--blue);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(30,34,51,.1);
}
.drawing-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  display: block;
}
.drawing-label {
  padding: 12px 16px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
}

/* ─── ПОЛЕЗНЫЕ МАТЕРИАЛЫ ─── */
.material-card {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 32px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px;
  align-items: start;
  margin-bottom: 16px;
  transition: border-color .15s, transform .15s;
}
.material-card:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
}
.material-cover {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 3/4;
  background: var(--bg2);
}
.material-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.material-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 10px;
}
.material-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 8px;
}
.material-author {
  font-size: 13px;
  color: var(--ink3);
  margin-bottom: 14px;
}
.material-desc {
  font-size: 14px;
  color: var(--ink2);
  line-height: 1.7;
  margin-bottom: 20px;
}

/* ─── CTA ─── */
div.cta { flex-shrink: 0; flex-grow: 0; flex-basis: auto
  text-align: center;
  padding: 64px 40px;
  background: var(--blue);
}
div.cta h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -.03em;
  color: #fff;
  margin-bottom: 12px;
}
div.cta p {
  font-size: 15px;
  color: rgba(255,255,255,.8);
  margin-bottom: 24px;
}
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--orange);
  color: #fff;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  padding: 15px 32px;
  border-radius: 8px;
  text-decoration: none;
  transition: background .15s, transform .15s;
}
.cta-btn:hover { background: var(--orange2); transform: translateY(-2px); }

/* ─── ЛАЙТБОКС ─── */
.doc-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
}
.doc-lightbox.open { display: flex; }
.doc-lightbox-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.92);
}
.doc-lightbox img {
  position: relative;
  z-index: 1;
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 6px;
}
.doc-lightbox-close {
  position: absolute;
  top: 20px;
  right: 24px;
  z-index: 2;
  background: none;
  border: none;
  color: #fff;
  font-size: 36px;
  cursor: pointer;
  line-height: 1;
  opacity: .7;
  transition: opacity .15s;
}
.doc-lightbox-close:hover { opacity: 1; }

/* ─── АНИМАЦИЯ ─── */
.js-ready .fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .5s ease, transform .5s ease;
}
.js-ready .fade-up.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .fade-up { opacity: 1; transform: none; transition: none; }
}

/* ─── АДАПТИВ ─── */
@media (max-width: 900px) {
  .cert-grid { grid-template-columns: 1fr; }
  .norm-docs { grid-template-columns: 1fr; }
  .drawings-grid { grid-template-columns: 1fr 1fr; }
  .excerpt-items { grid-template-columns: 1fr; }
  .doc-nav { top: 0; }
}
@media (max-width: 768px) {
  section.cert-section,
  section.normativ-section,
  section.drawings-section,
  section.materials-section { padding: 56px 0; }
  .section-inner { padding: 0 20px; }
  .hero-inner { padding: 0 20px; }
  .drawings-grid { grid-template-columns: 1fr; }
  .material-card { grid-template-columns: 1fr; }
  .excerpt-block { padding: 24px 20px; }
  .doc-nav-inner { padding: 0 16px; }
  div.cta { flex-shrink: 0; flex-grow: 0; flex-basis: auto padding: 48px 20px; }
}

/* ─── Старый лайтбокс (скрыт по умолчанию) ─── */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,.92);
  align-items: center;
  justify-content: center;
}
.lightbox.open { display: flex; }
.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  color: #fff;
  font-size: 28px;
  cursor: pointer;
  z-index: 2;
}
.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 6px;
}

/* Гарантируем видимость footer на страницах документов */
body.page-template-page-doc-cert footer,
body.page-template-page-doc-normativ footer,
body.page-template-page-doc-drawings footer,
body.page-template-page-doc-materials footer {
  display: block !important;
  flex-shrink: 0;
}

/* Фикс footer на страницах документов */
body.page-template-page-doc-cert,
body.page-template-page-doc-normativ,
body.page-template-page-doc-drawings,
body.page-template-page-doc-materials {
  display: block !important;
  min-height: 100vh;
}

/* ── DOCS HUB GRID ─────────────────────────────── */
.docs-hub-section { padding: 64px 0; }

.docs-hub-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.docs-hub-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 32px;
  background: #fff;
  border: 1.5px solid #e5e7eb;
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  transition: border-color .2s, box-shadow .2s, transform .2s;
  position: relative;
}
.docs-hub-card:hover {
  border-color: var(--clr-accent);
  box-shadow: 0 8px 32px rgba(0,0,0,.08);
  transform: translateY(-2px);
}

.docs-hub-icon {
  width: 48px;
  height: 48px;
  color: var(--clr-primary);
}
.docs-hub-icon svg { width: 100%; height: 100%; }

.docs-hub-num {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--clr-accent);
  text-transform: uppercase;
}

.docs-hub-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--clr-primary);
  line-height: 1.2;
}

.docs-hub-desc {
  font-size: 15px;
  color: #6b7280;
  line-height: 1.5;
  flex: 1;
}

.docs-hub-arrow {
  font-size: 20px;
  color: var(--clr-accent);
  font-weight: 700;
  align-self: flex-end;
}

@media (max-width: 640px) {
  .docs-hub-grid { grid-template-columns: 1fr; }
  .docs-hub-card { padding: 24px; }
}